How long should i soak pumpkin, cantaloupe, lettuce, and squash seeds, for?

I do soak pumpkin, cantaloupe, squash and cuber seeds for 24 hours. I've never soaked the lettuce seeds. Try to seed by the moon phases, maybe the link below will help. I've done this and had results. My heighbours planted the carrot seeds two weeks before me, but my seeds germinated quicker that theirs. And my carrots are now ready to be harvested, theirs are not yet. And we used the same seeds.